85 lines
2.9 KiB
Haskell
Executable File
85 lines
2.9 KiB
Haskell
Executable File
#!/usr/bin/env stack
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-- stack --resolver lts-11.1 runghc --package minio-hs
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--
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-- MinIO Haskell SDK, (C) 2017, 2018 MinIO, Inc.
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--
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-- Licensed under the Apache License, Version 2.0 (the "License");
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-- you may not use this file except in compliance with the License.
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-- You may obtain a copy of the License at
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--
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-- http://www.apache.org/licenses/LICENSE-2.0
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--
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-- Unless required by applicable law or agreed to in writing, software
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-- distributed under the License is distributed on an "AS IS" BASIS,
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-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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-- See the License for the specific language governing permissions and
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-- limitations under the License.
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--
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{-# LANGUAGE OverloadedStrings #-}
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import Network.Minio
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import qualified Data.ByteString as B
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import qualified Data.ByteString.Char8 as Char8
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import qualified Data.Map.Strict as Map
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import qualified Data.Text.Encoding as Enc
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import qualified Data.Time as Time
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-- | The following example uses minio's play server at
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-- https://play.min.io. The endpoint and associated
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-- credentials are provided via the libary constant,
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--
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-- > minioPlayCI :: ConnectInfo
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--
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main :: IO ()
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main = do
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now <- Time.getCurrentTime
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let
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bucket = "my-bucket"
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object = "my-object"
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-- set an expiration time of 10 days
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expireTime = Time.addUTCTime (3600 * 24 * 10) now
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-- create a policy with expiration time and conditions - since the
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-- conditions are validated, newPostPolicy returns an Either value
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policyE = newPostPolicy expireTime
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[ -- set the object name condition
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ppCondKey "photos/my-object"
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-- set the bucket name condition
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, ppCondBucket "my-bucket"
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-- set the size range of object as 1B to 10MiB
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, ppCondContentLengthRange 1 (10*1024*1024)
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-- set content type as jpg image
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, ppCondContentType "image/jpeg"
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-- on success set the server response code to 200
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, ppCondSuccessActionStatus 200
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]
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case policyE of
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Left err -> putStrLn $ show err
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Right policy -> do
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res <- runMinio minioPlayCI $ do
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(url, formData) <- presignedPostPolicy policy
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-- a curl command is output to demonstrate using the generated
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-- URL and form-data
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let
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formFn (k, v) = B.concat ["-F ", Enc.encodeUtf8 k, "=",
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"'", v, "'"]
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formOptions = B.intercalate " " $ map formFn $ Map.toList formData
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return $ B.intercalate " " $
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["curl", formOptions, "-F file=@/tmp/photo.jpg", url]
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case res of
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Left e -> putStrLn $ "post-policy error: " ++ (show e)
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Right cmd -> do
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putStrLn $ "Put a photo at /tmp/photo.jpg and run command:\n"
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-- print the generated curl command
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Char8.putStrLn cmd
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